7. Do not tell anyone how much is your investment or what year have you started holding bitcoin, such types of discussion often exposes' you to hackers, they don't mind using any forms of techniques to scam you since they have gain little information about you through discussion that is why it's advisable to avoid some sensitive discussions about oneself. Keep in mind that you don't have to involve yourself with any discussion about when you join bitcointalk or when and how long have you hold bitcoin probably what year. What I noticed is that most people often use this answers as secrete question / answer whereby you won't know when you are giving them this vital information from then your account could be hacked.
All of the prevention measures are important to adhere to, but personally, I am more concerned about number 7. The most successful scams are from people who know about the amount you have in your portfolio. These scammers can be people who are very close to you and understand your persona. This is why they can identify the best possible way to scam a person. All investors should avoid telling anyone, including their siblings, parents, or partners, what is in their portfolio. I know how exciting it can be to see your investment increasing, and you feel like sharing it with your close ones, maybe to motivate them to start investing or to make them understand that you have been elevated. Avoid it! Let's avoid it!